ENVIRONMENTAL INDEX OF ENERGY CONSUMPTION IN BUILDINGS APPLIED TO PARAMETRIC MODEL DESIGN

PATRICIA CAMPOREALE; JORGE DANIEL CZAJKOWSKI

Proceedings of the II International and IV National Congress on Sustainable Construction and Eco-Efficient Solutions

FUNDED BY THE HIGHER TECHNICAL SCHOOL OF BUILDING ENGINEERING OF THE UNIVERSITY OF SEVILLE

Lugar: Seville; Año: 2015; p. 629 - 651

This work is part of a doctoral thesis about optimization of parametric bioclimatic design. We develop two bioclimatic indexes of heating and cooling for typical winter and summer days respectively, which are optimised by means of genetic algorithms (GA). The object is a high-rise building with multiple uses, located in a plot of urban land, which adequates to Buenos Aires City Environmental Code. The efficient envelope fulfils the Law of Thermal Conditioning in Buildings for Buenos Aires City and IRAM Standards 11604 and 11659/1-2. After parameterizing the building geometry, we introduce solar thermal loads, transmission loads and internal loads. We employ our own climatic data from the Laboratory: hourly solar radiation and temperature. Then, we run the program successive times in order to obtain a set of solutions, which have equivalent energy performance but different spatial configuration. We utilize a genetic algorithm (GA) to optimise the process. Based on the results, we can analyse which variables influence the energy performance of the alternatives. This tool proves to be effective to design and optimise architectural solutions for a high-rise building, while giving the designer more options than traditional design method. We verify the hypothesis of the incidence of envelope geometry on energy consumptionby means of these new indexes. The calculations of these new indexes?Bheat and Bcool ?let us evaluate simultaneously both parameters, providing a common basis of comparison: 24-hour energy consumption of typical winter and summer days. We can affirm that energy efficient design cannot let apart summer condition for our bioclimatic zone (humid temperate) IIIb (IRAM 11603) [6]. Nevertheless, the above mentioned law in Buenos Aires Province only require a minimum Gheat, taking into account just winter.